Valve.



M. J. & T. J. FLANAGAN.

VALVE.

APPLICATION man 0Ec.29.1914.

1,176,887. Patented Mar. 28, 1916.

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v 4 1 w W 1H0 zone/13o T E COLUMBIA PLANOGRAPH C0 ASHINGTQN D C vided-witha pair of valve seats interposed between the inlet and outlet ends of the cas 5; run srn'rns ra'rnn'fr W MICHAEL JOSEPH FLA'NAGAN AND THOMAS JAMES FLANAGA'N, 0F TULSA, OKLAHOMA.

VALVE.

Specification of Letters Patent.

Application filed December 29, 1914. Serial No. 879,455.

To all whom it may concern:

Be it known that we, MICH EL J. FLAN- AGAN and THOMAS J. FLANAGAN, citizens of the United States, residing at Tulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Valves,of which the following is aspecification, reference being had therein to the accompanying'drawing.

This invention relatesto improvements in cut-off valves, more especially adapted for service in pipe lines for conducting oils and the like, and has for its object the provision of a structure of eficient arrangement'involving the use of a minimum number of parts, lending to the easy assembling, repair or cleaning, and practical operation of the valve.

The invention broadly comprehends a structure involving a suitable casing proing, associated with a cooperating double faced valve, one member of which is adapted to act asa cut-off for the fluid being transported, and the other member cooperating with a pressure pocket or chamber, so that fluid in said chamber may assist in holding the valve in closed condition, said last mentioned member of thevalve being of greater diameter than the cut-off portion of the valve as exposed to the inlet end of the casing, and the valve being of a balanced type as exposed to the outlet end of the casing,

incombination with means for relieving the fluid pressure n said pressure pocket or chamber as occasion requires.

More specifically, the preferred embodiment'of the invention embraces a casing of integral formation afiording suitable valve seats, pressure pocket, and by-passes or ducts, adouble valve of integral'formation throughout adapted to be inserted or withdrawn through an open top of the casing,

and a cover or top for the casing adapted. to close the pressure chamber and form com munication between the pressure chamber and the relief duct in the casing, combined with a valve carried by the top designed to open and close said relief duct.

That the details of construction and arrangement of partsof our improved construction may be made clear to persons skilled in the art, we have illustrated in the accompanyingdrawings forming part here of the above stated preferred embodiment of the invention, although it will be apparent that alterations and substitutions may be made in the structure as actually disclosed, thereby constituting other embodiments of the invention, without departing from the latter, all as may be in keeping with the hereinafter appended claims.

In the drawings, Figure l is a side view of the complete device, and Fig.- 2 is a longitudinal vertical sectional view of the same.

Referring more specifically to the drawlngs, wherein like reference letters designate corresponding parts in the several views, A, represents a casing of globular type terminating at opposite ends in interiorly threaded inlet and outlet portions B and C, respectively, the, former being designed to bedetachably coupled to a suitable source of supply, such as a tank not necessary to be shown herein, and the latter to be similarly coupled to an outlet piping or the like to meet the conditions of service in connection with which the valve is employed. Interiorlv-of the casing A, the same is formed with an integral diaphragm or partition having a vertical wall D and a bottom or horizontal portion E, combining to divide the interior of the easing into inlet and outlet portions, as is obvious.

In the horizontal portion E is provided a port F surrounding which on the upper surface of said portion is afvalvecseat G; and bridging the space above said valve seat, and integral with the upper portion of the wall D as well as integral with the casing A is another valve seat H above and surrounding a similar port J. In the upper portion of the casing A and above said last mentioned valve seat 1-1, we provide a pressure chamber or pocket K, the same being of substantial size, that is, greater in width than the said valve seat and extending through the top of the casing, this pressure chamber being connected to the inlet portion of the casing A bv means of an in clined duct L passing downwardly diagonallv through the partition D, as illustrated.

M represents a valve stem carrying at its lower end and preferably integrally therewith a valve N adapted to engage the seat G, and at its upper end a similarly formed valve 0 adapted to engage the seat H, these valve members having suitable guide proiections n and 0 working in the ports F and J, it being here observed that the exposed upper surface of the valve member 0 is V in a suitable bearing S removably threaded.

into a correspondinglv threaded portion T of the cover plate, said valve being adjustable in its bearing to open from or close onto a seat U in the top surface of the casing A and constituting the mouth of a duct lV passing vertically through the upper portion of thecasing A and opening at its lower end to the'outlet portion of the casing and at 1ts upper end to a passage X formed in the under surface of the cover P and 'communicating at :0. with the pressure pocket or chamber K. p

[From the foregoing description. it will be apparent that the construction therein de' fined'is of an extremely simple and practical nature, and the operation of the same may be stated as follows, to wit: The inlet end of the casing being in communication with a su plv tank, and the outlet end coupled with means for conducting the fluid to the point desired, it will be found that,

with the proper amount of material inthe tank. the double valve will be raised by the weight of the fluid to open the port F, and permit the fluid to feed around the bottom of the casing through the port and outlet end' of the casing. It will be seen. that when it is desired to actuate the valve Mit is necessarv to allow the fluid and air conalso v opened. 7

tained within the pressure chamber K to pass therefrom throu h the reliefduct'l/V, this duct eing controlled bv a reciprocating valve. When, however, the supply decreases. or the ouantitv in the tank lowers to a predetermined le el.the valve will close and act as a cut off to prevent thefluid in V the outlet returning through the port F, the maintenance of the valve in: its closed condition being facilitated bv reason of the pressure of the air and water :admitted through the port L to the pressure chamber or pocket, K a ove the upper valve. which pressure, with the suction exerted at the outlet end of the casing, will be adequate to hold the valve closed against the'pressure of any fluid remaining in the lower part of the casing, it being necessarv to o en the valve controlling the relief ductallowing the water within the pressure chamber to escape before the main valve is again 'structing matter. 7

-When it is desired to feed the fluid through the valve, it is necessary to release the pressure of the'water; and the airwithin;

the pressure chamber K in order to cause the opening of the valve, and under such conditions the valve R 18 opened to release the water and air confined within the (3113111 her and allowthis water and air to pass outwardly throughthe passage 2 in the cover and down through the duct 7 to the outlet portion of the case, at which time the valve M opens.

Should the ports orvalves ever become clogged or impaired inany way, it is simply necessary to remove the cover, which will expose the operatlngend of the valveR for cleaning, etc., and at that time the double valve NO maybe lifted from the seats;

and Withdrawn through the open top of the casing; and similarlv the ducts'L andlV,

owing to their approximately vertical dispositions, mav bereadily cleared of any ob- I-Iav'ing thus described the invention, what we claim as new anddesire to secure by Letters Patent is: V V1 1 1. A valve of the character described comprising a hollowcasi'ngdividedby a partition into inletand outlet portions, a pair of valve seats interposed between the inletand outlet portions bordering suitableport's, a

cut-off valve vhaving upper and lower por.--

tions adapted toengage said seats, the casing being formed withv a pressure chamber above the upper valve member communicating with the inlet portionof the casin x'a'nd the casing having a reliefduct therein between the pressurechamb'er and the outlet end ,of the casing. incombination with a valvefor closing the'duct. andaremovable cover for the casing overlvinpr the ductcarrying said last mentionedval e.

V 2. A valve of the chara cte described com prising a hollow casing divided bva partition into inlet and" outlet portionspapair' of valve seats interposed between thefinlet and'outlet portions, a cut-off valve having upper and lower portions adanted to en-f loo ga e said seats, the casing being formed:

with a pressure chamber above the u er valve member communicating-with the inlet.

portion of'tl ei casing, and he'c'asimq'having the ein a, relief ductestablishing communi-' cation between the pressurechamber aim] the,

out et portion of the casing. inlcombination with acover for thecasin g having a recessed portion; in its'underside adapted to overlie the reliefduct in the casinaaand a val e carried bv the cover for opening or closing the relief duct.

3. A valve of the character-de cribed comprising a hollow casing divid d by aparti tion into inlet and outlet portions, a pair of outlet portions, bordering. suitable -Zports', a

'valve'seat's interposed between the inlet and:

cut-off valve having upper and lower prtions adapted to engage said seats, the casing being formed with a pressure chamber above the upper valve member communicating with the inlet portion of the casing, and the casing having a relief duct between the pressure chamber and the outlet end of the casing, in combination with a valve therefor, and a cover for the casing overlying the pressure chamber and having a recessed portion in its under face near one side thereof forming a part of the relief duct, the last mentioned valve being carried by the cover.

4. A valve of the character described, comprising a hollow casing divided by a partition into inlet and outlet portions, a pair of seats interposed between the inlet and outlet portions bordering suitable ports, a cut-off valve having upper and lower parts adapted to engage said seats, the casing being formed with an air chamber above the upper .valve member communicating with the inlet portion of the casing, the communication between the air chamber and the inlet end of the casing being by means of a port passing through the upper portion of the partition directly into the pressure chamber, a relief duct consisting of a relatively small bore arranged in one of the solid walls of the easing, and connecting the outlet portion of the casing with the pressure chamber, in combination with a removable cover for the easing having a recessed part therein overlying a portion of the pressure chamber and the relief duct, the recessed portion forming a part of the relief duct to permit the pressure in the pressure chamber to be relieved, and a valve carried by the cover and passing through the recessed portion in the cover and havinga reduced end portion for controlling the relief duct.

In testimony whereof we hereunto aiiix our signatures in the presence of two witnesses.

MICHAEL JOSEPH FLANAGAN. THOMAS JAMES FLANAGAN.

Witnesses:

N. E. WAGNER, \IV. S. MAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

